Climateby Month

Tuscaloosa, AL weather in September

NOAA 1991-2020 normals and daily records · Tuscaloosa all year

September in Tuscaloosa: warm and often humid, with some rain. Highs 87°F, lows 66°F, about 6 wet days.

Normal high
87°F
Normal low
66°F
Wet days
6
3.3 in total
Muggy days
17
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high90°F83°F
Normal low70°F60°F
Chance of a wet day25%20%
Sunrise / sunset6:24 am / 7:15 pm6:43 am / 6:36 pm
Daylight12.8 h11.9 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical September day

  1. 6 am67°Fdew point 64°F
  2. 9 am77°Fdew point 66°F
  3. Noon84°Fdew point 65°F
  4. 3 pm86°Fdew point 63°F
  5. 6 pm79°Fdew point 65°F
  6. 9 pm72°Fdew point 66°F

NOAA hourly normals (local standard time) from Tuscaloosa Muni Airport (3 mi away); average wind 4 mph; clear or few clouds in 42% of daytime hours, mostly cloudy or overcast in 35%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F2 of 30
  • Hot dayshigh 90°F or more13 of 30
  • Muggy daysdaily mean dew point 65°F or more17 of 30
  • Wet daysat least 0.01 in of rain or melted snow6 of 30
  • Notable rainat least 0.10 in5 of 30
  • Freezing nightslow 32°F or below0 of 30

Average days per September, counted from daily records for each year 1991-2020.

Rain in September

Normal precipitation is 3.3 in; a dry September brings about 1.6 in and a wet one about 4.4 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202019: average high 96°F
  • Coolest September2001: average high 83°F
  • Wettest September2009: 10.6 in
  • Driest September2019: no measurable precipitation
  • Highest reading101°F (September 13, 2019)
  • Lowest reading42°F (September 23, 1999)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

September compared with August and October

AugustSeptemberOctober
Normal high91°F87°F77°F
Normal low72°F66°F53°F
Wet days1066
Comfortable days0212
Daylight13.3 h12.4 h11.3 h

Highs change by -4°F from August and -10°F into October.

How Tuscaloosa ranks in September

  • Normal high115th warmest of 378 cities; 4th of 6 in Alabama
  • Wet days123rd driest of 378
  • Comfortable days258th most of 342

What to pack for Tuscaloosa in September

  • Light, breathable clothing – highs near 87°F and about 17 muggy days

Heating and cooling

September has 4 heating degree days and 343 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.

Questions

How hot is Tuscaloosa in September?

The normal high is 87°F and the normal low is 66°F. From 1991 to 2020 the hottest September reading was 101°F (September 13, 2019).

Does it rain a lot in Tuscaloosa in September?

About 6 days in September have at least 0.01 in of precipitation, and the normal total is 3.3 in. The wettest September in 1991-2020 was in 2009 (10.6 in); the driest was in 2019, with no measurable precipitation.

Is September a good time to visit Tuscaloosa?

September ranks 9th of 12 months on our comfort score for Tuscaloosa (44 out of 100). It has about 2 comfortable days and about 13 days at 90°F or hotter. The best months are March and April.

Where the numbers come from

  • Temperature, frost dates and humidity and wind by hour: Tuscaloosa Muni Airport (USW00093806), 2.7 mi W of the city center, 150 ft (75 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Rain, snowfall and snow depth: Tuscaloosa Oliver Dam (USC00018385), 1.4 mi W of the city center, 152 ft (73 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Birmingham Airport (USW00013876), 54 mi ENE of the city center, 615 ft (390 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Tuscaloosa Municipal Arpt (722286-93806), 2.7 mi W of the city center, 149 ft (76 ft lower than the city). Hourly observations, 1991-2020.